Finding the Fourth Proportional to 148,643.75, 205,127.33 and 80,658.99
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Solution
The fourth proportional to 148,643.75, 205,127.33 and 80,658.99 is: 111,308.84
Step by Step Solution
- Step 1: Write the proportion equation
148,643.75 : 205,127.33 = 80,658.99 : x - Step 2: Convert to fraction form
148,643.75/205,127.33 = 80,658.99/x - Step 3: Cross multiply
148,643.75x = 205,127.33 × 80,658.99 - Step 4: Simplify right side
148,643.75x = 16,545,362,855.90 - Step 5: Solve for x
x = 16,545,362,855.90/148,643.75 - Step 6: Final answer
x = 111,308.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.